/* ==============================================================================
   全国重点旅游城市爬虫实训 · 智能抽签答题大屏样式表 (test.hceb.asia)
   支持明亮 (Light) / 暗黑 (Dark) 全局主题切换，大字号大屏全屏优化
   ============================================================================== */

:root {
  /* 默认：暗黑模式 (Dark Mode) */
  --bg-primary: #080c16;
  --bg-card: rgba(14, 21, 38, 0.9);
  --bg-card-sub: rgba(10, 15, 28, 0.75);
  --bg-card-hover: rgba(22, 32, 58, 0.95);
  --border-glow: rgba(0, 240, 255, 0.35);
  --border-dim: rgba(255, 255, 255, 0.1);
  --cyan-primary: #00f0ff;
  --cyan-glow: rgba(0, 240, 255, 0.5);
  --purple-primary: #a855f7;
  --gold-primary: #f59e0b;
  --green-primary: #10b981;
  --red-primary: #ef4444;
  --text-main: #f8fafc;
  --text-sub: #94a3b8;
  --text-dim: #64748b;
  --header-bg: rgba(11, 17, 32, 0.94);
  --shadow-main: rgba(0, 0, 0, 0.6);
  --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
}

/* 明亮模式 (Light Mode) 变量覆盖 */
[data-theme="light"] {
  --bg-primary: #f1f5f9;
  --bg-card: rgba(255, 255, 255, 0.95);
  --bg-card-sub: rgba(248, 250, 252, 0.9);
  --bg-card-hover: #ffffff;
  --border-glow: rgba(2, 132, 199, 0.35);
  --border-dim: rgba(0, 0, 0, 0.1);
  --cyan-primary: #0284c7;
  --cyan-glow: rgba(2, 132, 199, 0.35);
  --purple-primary: #7c3aed;
  --gold-primary: #d97706;
  --green-primary: #059669;
  --red-primary: #dc2626;
  --text-main: #0f172a;
  --text-sub: #334155;
  --text-dim: #64748b;
  --header-bg: rgba(255, 255, 255, 0.96);
  --shadow-main: rgba(0, 0, 0, 0.1);
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  -webkit-font-smoothing: antialiased;
}

body {
  font-family: var(--font-family);
  background-color: var(--bg-primary);
  background-image: 
    radial-gradient(circle at 10% 15%, rgba(0, 240, 255, 0.08) 0%, transparent 40%),
    radial-gradient(circle at 90% 20%, rgba(168, 85, 247, 0.12) 0%, transparent 40%),
    radial-gradient(circle at 50% 90%, rgba(16, 185, 129, 0.06) 0%, transparent 50%),
    linear-gradient(to bottom, var(--bg-primary), var(--bg-primary));
  color: var(--text-main);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
  transition: background-color 0.3s ease, color 0.3s ease;
}

[data-theme="light"] body {
  background-image: 
    radial-gradient(circle at 10% 15%, rgba(2, 132, 199, 0.08) 0%, transparent 40%),
    radial-gradient(circle at 90% 20%, rgba(124, 58, 237, 0.06) 0%, transparent 40%),
    linear-gradient(to bottom, #f1f5f9, #e2e8f0);
}

/* ================= 顶栏 Header ================= */
.app-header {
  height: 68px;
  background: var(--header-bg);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border-glow);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 24px;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 4px 20px var(--shadow-main);
  transition: all 0.3s ease;
}

.brand-section {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand-icon {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  background: linear-gradient(135deg, rgba(0, 240, 255, 0.25), rgba(168, 85, 247, 0.25));
  border: 1px solid var(--cyan-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  box-shadow: 0 0 15px rgba(0, 240, 255, 0.35);
}

.brand-title h1 {
  font-size: 18px;
  font-weight: 800;
  letter-spacing: 0.5px;
  background: linear-gradient(90deg, var(--text-main), var(--cyan-primary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.brand-title p {
  font-size: 11px;
  color: var(--text-sub);
  margin-top: 2px;
}

/* 班级切换 Pill */
.class-switch-bar {
  display: flex;
  background: var(--bg-card-sub);
  padding: 4px;
  border-radius: 30px;
  border: 1px solid var(--border-dim);
  box-shadow: inset 0 2px 6px rgba(0, 0, 0, 0.2);
}

.class-pill {
  padding: 7px 16px;
  border-radius: 20px;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-sub);
  cursor: pointer;
  transition: all 0.25s ease;
  display: flex;
  align-items: center;
  gap: 8px;
  border: none;
  background: transparent;
}

.class-pill .badge {
  font-size: 11px;
  padding: 2px 7px;
  border-radius: 10px;
  background: rgba(0, 0, 0, 0.1);
  color: var(--text-sub);
}

.class-pill.active {
  background: linear-gradient(135deg, #00f0ff, #0284c7);
  color: #031124;
  box-shadow: 0 0 16px rgba(0, 240, 255, 0.5);
}

.class-pill.active .badge {
  background: rgba(3, 17, 36, 0.35);
  color: #031124;
  font-weight: 700;
}

/* 顶栏控制按钮 */
.header-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.btn-h {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 13px;
  font-size: 12px;
  font-weight: 600;
  border-radius: 8px;
  border: 1px solid var(--border-dim);
  background: var(--bg-card-sub);
  color: var(--text-main);
  cursor: pointer;
  transition: all 0.2s ease;
}

.btn-h:hover {
  background: var(--bg-card-hover);
  border-color: var(--cyan-primary);
  color: var(--cyan-primary);
  transform: translateY(-1px);
}

.btn-h-primary {
  background: linear-gradient(135deg, rgba(0, 240, 255, 0.25), rgba(168, 85, 247, 0.25));
  border-color: var(--cyan-primary);
  color: var(--cyan-primary);
  box-shadow: 0 0 10px rgba(0, 240, 255, 0.2);
}

/* 主题切换按钮 */
.btn-theme-toggle {
  background: var(--bg-card-sub);
  border: 1px solid var(--border-glow);
  color: var(--gold-primary);
  font-weight: 700;
}

/* ================= 主布局 Container (PC 大屏) ================= */
.app-container {
  flex: 1;
  display: grid;
  grid-template-columns: 1fr 390px;
  gap: 20px;
  padding: 20px 24px;
  max-width: 1920px;
  margin: 0 auto;
  width: 100%;
}

/* ================= 左侧/中央大屏主舞台 ================= */
.stage-panel {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

/* 规则概览提示条 */
.rule-bar {
  background: var(--bg-card);
  border: 1px solid var(--border-dim);
  border-radius: 12px;
  padding: 10px 18px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 12px;
  box-shadow: 0 4px 15px var(--shadow-main);
}

.rule-tags {
  display: flex;
  align-items: center;
  gap: 10px;
}

.rule-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border-radius: 6px;
  background: rgba(0, 240, 255, 0.1);
  color: var(--cyan-primary);
  border: 1px solid var(--border-glow);
  font-weight: 600;
}

.rule-tag.purple {
  background: rgba(168, 85, 247, 0.1);
  color: var(--purple-primary);
  border-color: rgba(168, 85, 247, 0.3);
}

.stage-stats {
  display: flex;
  gap: 14px;
  color: var(--text-sub);
}

.stage-stats span b {
  color: var(--cyan-primary);
  font-weight: 700;
}

/* ================= 核心大屏卡片：中间是学生名字与题目 ================= */
.lottery-stage-card {
  background: var(--bg-card);
  border: 1px solid var(--border-glow);
  border-radius: 20px;
  padding: 26px 32px;
  position: relative;
  overflow: hidden;
  box-shadow: 0 16px 40px var(--shadow-main), inset 0 0 35px rgba(0, 240, 255, 0.05);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  transition: all 0.3s ease;
}

.lottery-stage-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, transparent, var(--cyan-primary), var(--purple-primary), var(--gold-primary), transparent);
}

/* 1. 中央核心：超大号学生姓名 (扩大字号！) */
.center-focus-stage {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  width: 100%;
}

.center-student-container {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 8px 0;
}

.focus-avatar-box {
  width: 86px;
  height: 86px;
  border-radius: 50%;
  background: linear-gradient(135deg, rgba(0, 240, 255, 0.2), rgba(168, 85, 247, 0.25));
  border: 2px solid var(--cyan-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 44px;
  margin-bottom: 10px;
  box-shadow: 0 0 25px var(--cyan-glow);
  transition: all 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}

/* 超大字号学生姓名 (72px+，扩大显示！) */
.focus-student-name {
  font-size: 74px;
  font-weight: 900;
  letter-spacing: 2px;
  color: var(--text-main);
  text-shadow: 0 0 25px var(--cyan-glow), 0 0 50px rgba(168, 85, 247, 0.3);
  margin-bottom: 4px;
  min-height: 86px;
  line-height: 1.15;
  transition: all 0.25s ease;
}

[data-theme="light"] .focus-student-name {
  color: #0369a1;
  text-shadow: 0 2px 15px rgba(2, 132, 199, 0.35);
}

.focus-student-meta {
  font-size: 15px;
  color: var(--text-sub);
  letter-spacing: 1px;
}

/* 抽中城市徽章 */
.center-city-pill {
  margin-top: 12px;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: linear-gradient(135deg, rgba(245, 158, 11, 0.18), rgba(239, 68, 68, 0.15));
  border: 1.5px solid var(--gold-primary);
  padding: 7px 22px;
  border-radius: 30px;
  box-shadow: 0 0 20px rgba(245, 158, 11, 0.25);
  transition: all 0.3s;
}

.center-city-pill .city-icon {
  font-size: 20px;
}

.center-city-pill .city-name {
  font-size: 22px;
  font-weight: 800;
  color: var(--gold-primary);
  letter-spacing: 1px;
}

.center-city-pill .city-landmarks {
  font-size: 13px;
  color: var(--text-sub);
  border-left: 1px solid rgba(245, 158, 11, 0.4);
  padding-left: 10px;
}

/* 2. 中间核心：抽取的模版题目展示 (支持二选一抽一道题单列显示，或多列显示) */
.center-tasks-stage {
  width: 100%;
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  margin-bottom: 20px;
}

.center-tasks-stage.multi-col {
  grid-template-columns: 1fr 1fr;
}

.task-big-card {
  background: var(--bg-card-sub);
  border: 1.5px solid var(--border-glow);
  border-radius: 16px;
  padding: 18px 24px;
  text-align: left;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
  box-shadow: 0 6px 20px var(--shadow-main);
}

.task-big-card.active-task {
  border-color: var(--cyan-primary);
  box-shadow: 0 0 30px var(--cyan-glow);
  background: var(--bg-card);
}

.task-big-card.purple-task.active-task {
  border-color: var(--purple-primary);
  box-shadow: 0 0 30px rgba(168, 85, 247, 0.3);
}

.task-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 8px;
}

.task-card-tag {
  font-size: 12px;
  font-weight: 800;
  padding: 3px 10px;
  border-radius: 6px;
  background: rgba(0, 240, 255, 0.18);
  color: var(--cyan-primary);
}

.task-card-title {
  font-size: 18px;
  font-weight: 900;
  color: var(--text-main);
  margin-bottom: 8px;
  line-height: 1.3;
}

.task-card-desc {
  font-size: 13px;
  color: var(--text-sub);
  line-height: 1.6;
  margin-bottom: 10px;
}

.task-fields-box {
  background: rgba(0, 0, 0, 0.15);
  border-radius: 8px;
  padding: 10px 14px;
  font-size: 12px;
  color: var(--text-sub);
  line-height: 1.6;
  border: 1px solid var(--border-dim);
}

[data-theme="light"] .task-fields-box {
  background: rgba(0, 0, 0, 0.03);
}

.task-fields-box b {
  color: var(--cyan-primary);
}

/* 3. 中央答题计时悬浮栏 (大幅扩大计时器字号！) */
.inline-timer-bar {
  width: 100%;
  background: var(--bg-card-sub);
  border: 1.5px solid rgba(245, 158, 11, 0.4);
  border-radius: 16px;
  padding: 12px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
  box-shadow: 0 4px 18px var(--shadow-main);
}

.timer-badge-title {
  font-size: 14px;
  font-weight: 800;
  color: var(--gold-primary);
  display: flex;
  align-items: center;
  gap: 8px;
}

/* 扩大嵌入式时钟数字 (54px+！) */
.timer-digits-display {
  font-family: "Courier New", Courier, monospace, sans-serif;
  font-size: 56px;
  font-weight: 900;
  color: var(--gold-primary);
  letter-spacing: 3px;
  text-shadow: 0 0 20px rgba(245, 158, 11, 0.6);
  min-width: 180px;
  line-height: 1;
}

.timer-digits-display.danger {
  color: var(--red-primary);
  text-shadow: 0 0 25px rgba(239, 68, 68, 0.85);
  animation: pulse-danger 0.5s infinite alternate;
}

@keyframes pulse-danger {
  0% { transform: scale(1); }
  100% { transform: scale(1.08); }
}

.timer-controls {
  display: flex;
  align-items: center;
  gap: 8px;
}

.btn-timer-sm {
  padding: 8px 14px;
  font-size: 13px;
  font-weight: 700;
  border-radius: 8px;
  border: 1px solid var(--border-dim);
  background: var(--bg-card);
  color: var(--text-main);
  cursor: pointer;
  transition: all 0.2s;
}

.btn-timer-sm:hover, .btn-timer-sm.active {
  background: rgba(245, 158, 11, 0.25);
  border-color: var(--gold-primary);
  color: var(--gold-primary);
}

/* 4. 底部主控按钮 */
.stage-controls {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
}

.btn-lottery-start {
  padding: 16px 48px;
  font-size: 18px;
  font-weight: 900;
  letter-spacing: 1px;
  border-radius: 36px;
  border: none;
  background: linear-gradient(135deg, #00f0ff, #0284c7);
  color: #031124;
  cursor: pointer;
  box-shadow: 0 0 25px var(--cyan-glow), inset 0 2px 4px rgba(255, 255, 255, 0.5);
  transition: all 0.25s cubic-bezier(0.34, 1.56, 0.64, 1);
  display: inline-flex;
  align-items: center;
  gap: 10px;
}

.btn-lottery-start:hover {
  transform: translateY(-2px) scale(1.02);
  box-shadow: 0 0 35px var(--cyan-glow);
}

.btn-lottery-start.rolling {
  background: linear-gradient(135deg, #f59e0b, #ef4444);
  color: #ffffff;
  box-shadow: 0 0 30px rgba(239, 68, 68, 0.7);
}

.btn-secondary-action {
  padding: 12px 20px;
  font-size: 13px;
  font-weight: 700;
  border-radius: 24px;
  border: 1px solid var(--border-dim);
  background: var(--bg-card-sub);
  color: var(--text-main);
  cursor: pointer;
  transition: all 0.2s;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.btn-secondary-action:hover {
  border-color: var(--purple-primary);
  color: var(--purple-primary);
  background: var(--bg-card-hover);
}

/* 待抽学生池流动网格 */
.pool-section {
  background: var(--bg-card);
  border: 1px solid var(--border-dim);
  border-radius: 16px;
  padding: 16px 20px;
  box-shadow: 0 4px 15px var(--shadow-main);
}

.pool-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
}

.pool-title {
  font-size: 13px;
  font-weight: 700;
  color: var(--text-main);
  display: flex;
  align-items: center;
  gap: 6px;
}

.pool-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(105px, 1fr));
  gap: 8px;
  max-height: 180px;
  overflow-y: auto;
  padding-right: 4px;
}

.student-card-item {
  background: var(--bg-card-sub);
  border: 1px solid var(--border-dim);
  border-radius: 8px;
  padding: 7px 8px;
  text-align: center;
  cursor: pointer;
  transition: all 0.2s;
}

.student-card-item:hover {
  border-color: var(--cyan-primary);
  transform: translateY(-2px);
  background: var(--bg-card-hover);
}

.student-card-item.drawn {
  background: rgba(16, 185, 129, 0.15);
  border-color: rgba(16, 185, 129, 0.4);
  opacity: 0.8;
}

.student-card-item.drawn:hover {
  opacity: 1;
}

.student-card-item .item-name {
  font-size: 13px;
  font-weight: 800;
  color: var(--text-main);
}

.student-card-item .item-id {
  font-size: 10px;
  color: var(--text-dim);
  font-family: monospace;
}

.student-card-item .item-city-tag {
  font-size: 10px;
  background: rgba(245, 158, 11, 0.25);
  color: var(--gold-primary);
  border-radius: 4px;
  padding: 1px 4px;
  margin-top: 2px;
  display: inline-block;
  white-space: nowrap;
}

/* ================= 右侧榜单与实时结果 ================= */
.sidebar-panel {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.result-card-container {
  background: var(--bg-card);
  border: 1px solid var(--border-dim);
  border-radius: 18px;
  display: flex;
  flex-direction: column;
  flex: 1;
  min-height: 560px;
  box-shadow: 0 10px 30px var(--shadow-main);
  overflow: hidden;
}

.result-header {
  padding: 16px 20px;
  background: var(--header-bg);
  border-bottom: 1px solid var(--border-dim);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.result-header h3 {
  font-size: 15px;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 8px;
}

.result-list {
  flex: 1;
  overflow-y: auto;
  padding: 12px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.result-empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 240px;
  color: var(--text-dim);
  font-size: 13px;
  gap: 8px;
}

.result-item {
  background: var(--bg-card-sub);
  border: 1px solid var(--border-dim);
  border-radius: 10px;
  padding: 10px 12px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  transition: all 0.2s;
}

.result-item:hover {
  border-color: var(--cyan-primary);
  background: var(--bg-card-hover);
}

.result-item-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.result-item-student {
  display: flex;
  align-items: center;
  gap: 8px;
}

.result-item-name {
  font-size: 15px;
  font-weight: 800;
  color: var(--text-main);
}

.result-item-id {
  font-size: 11px;
  color: var(--text-dim);
  font-family: monospace;
}

.result-city-badge {
  background: linear-gradient(135deg, rgba(245, 158, 11, 0.2), rgba(239, 68, 68, 0.2));
  border: 1px solid rgba(245, 158, 11, 0.4);
  color: var(--gold-primary);
  font-size: 11px;
  font-weight: 800;
  padding: 2px 7px;
  border-radius: 5px;
}

.result-item-tasks {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
}

.result-task-pill {
  font-size: 10px;
  padding: 2px 6px;
  border-radius: 4px;
  background: rgba(16, 185, 129, 0.15);
  color: var(--green-primary);
  border: 1px solid rgba(16, 185, 129, 0.3);
}

.result-item-actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-top: 1px dashed var(--border-dim);
  padding-top: 5px;
  font-size: 11px;
  color: var(--text-dim);
}

.btn-icon-tiny {
  background: transparent;
  border: none;
  color: var(--text-sub);
  cursor: pointer;
  font-size: 11px;
  padding: 2px 5px;
  border-radius: 4px;
  transition: all 0.2s;
}

.btn-icon-tiny:hover {
  background: rgba(0, 0, 0, 0.08);
  color: var(--cyan-primary);
}

.result-footer {
  padding: 12px 18px;
  background: var(--header-bg);
  border-top: 1px solid var(--border-dim);
  display: flex;
  gap: 8px;
}

/* ================= 巨屏答题计时器模态窗 (扩大数码字号至 140px！) ================= */
.timer-giant-modal {
  background: var(--bg-card);
  border: 2px solid var(--gold-primary);
  border-radius: 28px;
  width: 760px;
  max-width: 95vw;
  padding: 40px 36px;
  box-shadow: 0 0 70px rgba(245, 158, 11, 0.35);
  text-align: center;
  position: relative;
}

.timer-modal-tag {
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 2px;
  color: var(--gold-primary);
  text-transform: uppercase;
}

.timer-target-student {
  font-size: 26px;
  font-weight: 900;
  color: var(--text-main);
  margin-top: 8px;
  margin-bottom: 18px;
}

/* 巨屏数码管超大字号 (140px！) */
.giant-clock-display {
  font-family: "Courier New", Courier, monospace, sans-serif;
  font-size: 140px;
  font-weight: 900;
  color: var(--gold-primary);
  letter-spacing: 4px;
  text-shadow: 0 0 35px rgba(245, 158, 11, 0.6);
  line-height: 1;
  margin-bottom: 14px;
}

.giant-clock-display.danger {
  color: var(--red-primary);
  text-shadow: 0 0 45px rgba(239, 68, 68, 0.9);
  animation: pulse-danger 0.5s infinite alternate;
}

.clock-status-bar {
  font-size: 15px;
  color: var(--text-sub);
  margin-bottom: 26px;
}

.timer-preset-row {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
  margin-bottom: 28px;
}

.btn-preset {
  padding: 8px 14px;
  font-size: 13px;
  font-weight: 700;
  border-radius: 20px;
  border: 1px solid var(--border-dim);
  background: var(--bg-card-sub);
  color: var(--text-main);
  cursor: pointer;
  transition: all 0.2s;
}

.btn-preset:hover, .btn-preset.active {
  background: rgba(245, 158, 11, 0.25);
  border-color: var(--gold-primary);
  color: var(--gold-primary);
  transform: translateY(-1px);
}

.timer-modal-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
}

.btn-giant-start {
  padding: 14px 44px;
  font-size: 17px;
  font-weight: 800;
  border-radius: 30px;
  border: none;
  background: linear-gradient(135deg, #f59e0b, #d97706);
  color: #031124;
  cursor: pointer;
  box-shadow: 0 0 25px rgba(245, 158, 11, 0.5);
  transition: all 0.2s;
}

.btn-giant-start:hover {
  transform: scale(1.03);
}

.btn-giant-action {
  padding: 12px 24px;
  font-size: 14px;
  font-weight: 700;
  border-radius: 24px;
  border: 1px solid var(--border-dim);
  background: var(--bg-card-sub);
  color: var(--text-main);
  cursor: pointer;
  transition: all 0.2s;
}

.btn-giant-action:hover {
  background: var(--bg-card-hover);
}

/* ================= 抽中庆祝任务书大弹窗 (Celebrate Modal) ================= */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.75);
  backdrop-filter: blur(12px);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}

.modal-overlay.active {
  opacity: 1;
  pointer-events: auto;
}

.celebrate-modal {
  background: var(--bg-card);
  border: 2px solid var(--cyan-primary);
  border-radius: 24px;
  width: 660px;
  max-width: 95vw;
  padding: 34px 30px;
  box-shadow: 0 0 60px var(--cyan-glow);
  text-align: center;
  position: relative;
  transform: scale(0.92);
  transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.modal-overlay.active .celebrate-modal {
  transform: scale(1);
}

.modal-close-btn {
  position: absolute;
  top: 14px;
  right: 18px;
  background: transparent;
  border: none;
  font-size: 20px;
  color: var(--text-dim);
  cursor: pointer;
  transition: color 0.2s;
}

.modal-close-btn:hover {
  color: var(--text-main);
}

.celebrate-banner {
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 2px;
  color: var(--cyan-primary);
  text-transform: uppercase;
  margin-bottom: 6px;
}

.celebrate-student-title {
  font-size: 44px;
  font-weight: 900;
  color: var(--text-main);
  margin-bottom: 4px;
}

.celebrate-meta {
  font-size: 13px;
  color: var(--text-sub);
  margin-bottom: 18px;
}

.celebrate-target-city {
  background: rgba(245, 158, 11, 0.12);
  border: 1.5px solid var(--gold-primary);
  border-radius: 14px;
  padding: 14px;
  margin-bottom: 18px;
}

.city-target-name {
  font-size: 26px;
  font-weight: 800;
  color: var(--gold-primary);
  margin-bottom: 3px;
}

.city-target-landmarks {
  font-size: 13px;
  color: var(--text-sub);
}

.celebrate-tasks-box {
  background: var(--bg-card-sub);
  border: 1px solid var(--border-dim);
  border-radius: 12px;
  padding: 14px;
  text-align: left;
  margin-bottom: 20px;
  max-height: 220px;
  overflow-y: auto;
}

.celebrate-task-line {
  margin-bottom: 12px;
}

.celebrate-task-line:last-child {
  margin-bottom: 0;
}

.celebrate-task-title {
  font-size: 14px;
  font-weight: 800;
  color: var(--green-primary);
  margin-bottom: 3px;
}

.celebrate-task-fields {
  font-size: 12px;
  color: var(--text-sub);
  line-height: 1.5;
}

.celebrate-actions {
  display: flex;
  gap: 12px;
  justify-content: center;
}

/* ================= 全功能配置中心 Modal ================= */
.config-modal {
  background: var(--bg-card);
  border: 1.5px solid var(--border-glow);
  border-radius: 20px;
  width: 940px;
  max-width: 95vw;
  max-height: 88vh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  box-shadow: 0 20px 60px var(--shadow-main);
}

.config-header {
  padding: 16px 24px;
  border-bottom: 1px solid var(--border-dim);
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--header-bg);
}

.config-header h2 {
  font-size: 17px;
  font-weight: 800;
  display: flex;
  align-items: center;
  gap: 8px;
}

.config-nav {
  display: flex;
  background: var(--bg-card-sub);
  padding: 0 20px;
  border-bottom: 1px solid var(--border-dim);
  gap: 4px;
}

.config-tab-btn {
  padding: 12px 16px;
  font-size: 13px;
  font-weight: 700;
  color: var(--text-sub);
  background: transparent;
  border: none;
  border-bottom: 2px solid transparent;
  cursor: pointer;
  transition: all 0.2s;
}

.config-tab-btn:hover {
  color: var(--text-main);
}

.config-tab-btn.active {
  color: var(--cyan-primary);
  border-bottom-color: var(--cyan-primary);
}

.config-body {
  flex: 1;
  overflow-y: auto;
  padding: 22px;
}

.config-tab-pane {
  display: none;
}

.config-tab-pane.active {
  display: block;
}

.city-config-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(170px, 1fr));
  gap: 8px;
  max-height: 360px;
  overflow-y: auto;
  margin-bottom: 18px;
  padding-right: 4px;
}

.city-config-card {
  background: var(--bg-card-sub);
  border: 1px solid var(--border-dim);
  border-radius: 8px;
  padding: 8px 12px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.city-config-card.disabled {
  opacity: 0.45;
}

.city-config-info {
  display: flex;
  flex-direction: column;
}

.city-config-info .name {
  font-size: 13px;
  font-weight: 700;
  color: var(--text-main);
}

.city-config-info .prov {
  font-size: 11px;
  color: var(--text-dim);
}

.form-group {
  margin-bottom: 16px;
}

.form-group label {
  display: block;
  font-size: 13px;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 6px;
}

.form-control {
  width: 100%;
  padding: 9px 12px;
  border-radius: 8px;
  background: var(--bg-card-sub);
  border: 1px solid var(--border-dim);
  color: var(--text-main);
  font-size: 13px;
  font-family: inherit;
  outline: none;
  transition: border-color 0.2s;
}

.form-control:focus {
  border-color: var(--cyan-primary);
}

textarea.form-control {
  min-height: 75px;
  resize: vertical;
}

.btn-primary {
  background: linear-gradient(135deg, #00f0ff, #0284c7);
  color: #031124;
  font-weight: 800;
  border: none;
  padding: 9px 18px;
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.2s;
}

.btn-primary:hover {
  box-shadow: 0 0 15px var(--cyan-glow);
}

.btn-danger {
  background: rgba(239, 68, 68, 0.15);
  border: 1px solid rgba(239, 68, 68, 0.4);
  color: #f87171;
  padding: 8px 14px;
  border-radius: 8px;
  font-weight: 700;
  cursor: pointer;
}

.btn-danger:hover {
  background: rgba(239, 68, 68, 0.3);
}

.excel-dropzone {
  border: 2px dashed var(--border-glow);
  background: rgba(0, 240, 255, 0.03);
  border-radius: 12px;
  padding: 24px;
  text-align: center;
  cursor: pointer;
  transition: all 0.2s;
  margin-bottom: 16px;
}

.excel-dropzone:hover, .excel-dropzone.dragover {
  border-color: var(--cyan-primary);
  background: rgba(0, 240, 255, 0.08);
}

#confetti-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  pointer-events: none;
  z-index: 999;
}

.toast-msg {
  position: fixed;
  bottom: 28px;
  left: 50%;
  transform: translateX(-50%) translateY(100px);
  background: var(--bg-card);
  border: 1.5px solid var(--cyan-primary);
  color: var(--text-main);
  padding: 10px 20px;
  border-radius: 30px;
  font-size: 13px;
  font-weight: 700;
  box-shadow: 0 10px 30px var(--shadow-main), 0 0 15px var(--cyan-glow);
  z-index: 2000;
  opacity: 0;
  transition: all 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
  display: flex;
  align-items: center;
  gap: 8px;
}

.toast-msg.show {
  transform: translateX(-50%) translateY(0);
  opacity: 1;
}

/* ================= 全屏模式微调 (Full Screen Optimization - 扩大字体) ================= */
:fullscreen body, :-webkit-full-screen body {
  padding: 0;
}

:fullscreen .app-container, :-webkit-full-screen .app-container {
  height: calc(100vh - 68px);
}

/* 全屏状态下姓名扩大至 92px！ */
:fullscreen .focus-student-name, :-webkit-full-screen .focus-student-name {
  font-size: 92px;
  min-height: 105px;
}

/* 全屏状态下嵌入式计时器扩大至 68px！ */
:fullscreen .timer-digits-display, :-webkit-full-screen .timer-digits-display {
  font-size: 68px;
  min-width: 220px;
}

/* 响应式调整 */
@media (max-width: 1200px) {
  .app-container {
    grid-template-columns: 1fr;
  }
  .center-tasks-stage.multi-col {
    grid-template-columns: 1fr;
  }
}